private JObject GetAttachments(string FileID)
{
JObject rv = new JObject();
if (!String.IsNullOrEmpty(FileID))
{
string[] ids = FileID.Split(',', ';');
AttachmentCollection attachments;
using (IDbConnection cn = QueryManager.CurrentProvider.OpenConnection())
{
attachments = YZAttachmentHelper.GetAttachmentsInfo(cn, ids);
}
JArray ja = new JArray();
rv["files"] = ja;
foreach (Attachment item in attachments)
{
JObject jo = new JObject();
ja.Add(jo);
jo["name"] = item.Name;
string requestUrl = HttpContext.Current.Request.Url.ToString();
string RedirectURLBase = requestUrl.Substring(0, requestUrl.IndexOf("YZSoft", StringComparison.OrdinalIgnoreCase)) + "YZSoft.Services.REST/Attachment/download.ashx?" + item.FileID;
jo["DownloadUrl"] = RedirectURLBase;
}
}
return(rv);
}
public static Attachment GetAttachmentInfo(IDbConnection cn, string fileId)
{
if (String.IsNullOrEmpty(fileId))
{
throw new Exception(Resources.YZStrings.Aspx_Upload_EmptyFileID);
}
AttachmentCollection attachments = YZAttachmentHelper.GetAttachmentsInfo(cn, new string[] { fileId });
if (attachments.Count == 0)
{
throw new Exception(String.Format(Resources.YZStrings.Aspx_Upload_FileIDNotFount, fileId));
}
return(attachments[0]);
}
public void ProcessRequest(HttpContext context)
{
try
{
context.Response.AppendHeader("Access-Control-Allow-Origin", "*"); // 响应类型
context.Response.AppendHeader("Access-Control-Allow-Methods", "POST"); // 响应头设置
context.Response.AppendHeader("Access-Control-Allow-Headers", "x-requested-with,content-type");
context.Response.Charset = "gb2312"; //设置字符集类型
context.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
context.Response.ContentType = "application/json;charset=gb2312";
//context.Response.ContentType = "text/json";
string account = context.Request.Params["UserAccount"];
string token = context.Request.Params["Token"];
string thumbnail = context.Request.Params["thumbnail"];
YZAuthHelper.OAuth();
//YZAuthHelper.AshxAuthCheck();
//if (!YZAuthHelper.IsAuthenticated)
//{
// JsonItem rv = new JsonItem();
// rv.Attributes["success"] = false;
// rv.Attributes["errorMessage"] = JosonStrings.Aspx_Upload_NoAuth;
// context.Response.Write(rv.ToString());
// return;
//}
HttpFileCollection files = context.Request.Files;
if (files.Count > 0 && files[0].ContentLength > 0)
{
HttpPostedFile file = files[0];
string fileName = System.IO.Path.GetFileName(file.FileName);
long fileSize = file.ContentLength;
string fileExt = System.IO.Path.GetExtension(fileName).ToLower();
string fileId;
string savePath;
do
{
fileId = YZAttachmentHelper.GetNewFileID();
savePath = Attachment.FileIDToPath(fileId, YZAttachmentHelper.AttachmentRootPath);
} while (File.Exists(savePath));
Directory.CreateDirectory(savePath.Substring(0, savePath.LastIndexOf(@"\")));
file.SaveAs(savePath);
if (!String.IsNullOrEmpty(thumbnail) && !YZStringHelper.EquName(thumbnail, "n"))
{
this.MakeThumbnail(savePath, "S");
this.MakeThumbnail(savePath, "M");
}
Attachment attachment = new Attachment();
attachment.FileID = fileId;
attachment.Name = fileName;
attachment.Ext = fileExt;
attachment.Size = fileSize;
attachment.LastUpdate = DateTime.Now;
attachment.OwnerAccount = YZAuthHelper.LoginUserAccount;
using (IDbConnection cn = YZDBProviderManager.CurrentProvider.OpenConnection())
{
YZDBProviderManager.CurrentProvider.InsertAttachmentInfo(cn, attachment);
}
JsonItem rv = new JsonItem();
rv.Attributes["success"] = true;
rv.Attributes["fileid"] = fileId;
rv.Attributes["Name"] = fileName;
rv.Attributes["Ext"] = fileExt;
rv.Attributes["Size"] = fileSize;
rv.Attributes["OwnerAccount"] = attachment.OwnerAccount;
rv.Attributes["LastUpdate"] = YZStringHelper.DateToStringL(attachment.LastUpdate);
context.Response.Write(rv.ToString());
}
else
{
JsonItem rv = new JsonItem();
rv.Attributes["success"] = false;
rv.Attributes["errorMessage"] = JosonStrings.Aspx_Invalid_File;
context.Response.Write(rv.ToString());
}
}
catch (Exception exp)
{
JsonItem rv = new JsonItem();
rv.Attributes["success"] = false;
rv.Attributes["errorMessage"] = exp.Message /* + exp.StackTrace*/;
context.Response.Write(rv.ToString());
}
}
private JObject SaveAttachment(HttpContext context)
{
JObject result = new JObject();
HttpFileCollection files = context.Request.Files;
if (files.Count > 0 && files[0].ContentLength > 0)
{
HttpPostedFile file = files[0];
string fileName = System.IO.Path.GetFileName(file.FileName);
long fileSize = file.ContentLength;
string fileExt = System.IO.Path.GetExtension(fileName).ToLower();
//华为手机，fileExt格式 .png?112714368714
if (!String.IsNullOrEmpty(fileExt))
{
int index = fileExt.IndexOf('?');
if (index != -1)
{
fileExt = fileExt.Substring(0, index);
}
}
string fileId = YZAttachmentHelper.GetNewFileID();
string savePath = Attachment.FileIDToPath(fileId, YZAttachmentHelper.AttachmentRootPath);
Directory.CreateDirectory(savePath.Substring(0, savePath.LastIndexOf(@"\")));
file.SaveAs(savePath);
Attachment attachment = new Attachment();
attachment.Name = fileName;
attachment.Ext = fileExt;
attachment.Size = fileSize;
attachment.FileID = fileId;
if (String.IsNullOrEmpty(attachment.Name))
{
attachment.Name = fileId + attachment.Ext;
}
attachment.LastUpdate = DateTime.Now;
attachment.OwnerAccount = YZAuthHelper.LoginUserAccount;
using (IDbConnection cn = QueryManager.CurrentProvider.OpenConnection())
{
QueryManager.CurrentProvider.InsertAttachmentInfo(cn, attachment);
}
result["success"] = true;
result["fileid"] = attachment.FileID;
JObject attach = new JObject();
result["attachment"] = attach;
attach["FileID"] = attachment.FileID;
attach["Name"] = attachment.Name;
attach["Ext"] = attachment.Ext;
attach["Size"] = attachment.Size;
attach["FileID"] = attachment.FileID;
attach["LastUpdate"] = YZStringHelper.DateToStringL(attachment.LastUpdate);
attach["OwnerAccount"] = attachment.OwnerAccount;
}
else
{
throw new Exception("未上传文件");
}
return(result);
}
public void ProcessRequest(HttpContext context)
{
//if (context.Request.Headers["If-None-Match"] != null || context.Request.Headers["If-Modified-Since"] != null)
//{
// context.Response.Status = "304 Not Modified";
// context.Response.Cache.AppendCacheExtension("max-age=" + 365 * 24 * 60 * 60);
// context.Response.Cache.SetExpires(DateTime.Now.AddYears(1));
// context.Response.AppendHeader("ETag", "Never_Modify");
// context.Response.Cache.SetETag("Never_Modify");
// context.Response.Cache.SetLastModified(DateTime.Now.AddMinutes(-1));
// context.Response.End();
// return;
//}
string fileId = context.Request.Params["fileid"];
try
{
Attachment attachment;
using (IDbConnection cn = QueryManager.CurrentProvider.OpenConnection())
{
attachment = YZAttachmentHelper.GetAttachmentInfo(cn, fileId);
}
string fileName = attachment.Name;
string fileExt = attachment.Ext;
long fileSize = attachment.Size;
string filePath = Attachment.FileIDToPath(fileId, YZAttachmentHelper.AttachmentRootPath);
if (!File.Exists(filePath))
{
throw new Exception(String.Format(Net.MobileHelper.YZSoft.Resources.JosonStrings.Aspx_Upload_FileIDNotFount, fileId));
}
bool contentDisposition = true;
string range = context.Request.Headers["HTTP_RANGE"];
string content_type = "application/octet-stream";
RegistryKey file_key = Registry.ClassesRoot.OpenSubKey(fileExt);
if (file_key != null)
{
content_type = file_key.GetValue("Content Type", content_type).ToString();
}
context.Response.AppendHeader("Content-Type", content_type);
if (contentDisposition)
{
context.Response.AppendHeader("Content-Disposition", "attachment;filename=" + context.Server.UrlPathEncode(fileName));
}
context.Response.AppendHeader("Accept-Ranges", "bytes");
if (range == null)
{
//全新下载
context.Response.AppendHeader("Content-Length", fileSize.ToString());
context.Response.CacheControl = HttpCacheability.Public.ToString();
context.Response.Cache.AppendCacheExtension("max-age=" + 365 * 24 * 60 * 60);
context.Response.Cache.SetExpires(DateTime.Now.AddYears(1));
context.Response.AppendHeader("ETag", "Never_Modify");
context.Response.Cache.SetETag("Never_Modify");
context.Response.Cache.SetLastModified(DateTime.Now.AddMinutes(-1));
context.Response.TransmitFile(filePath);
}
else
{
//断点续传以及多线程下载支持
string[] file_range = range.Substring(6).Split(new char[1] {
'-'
});
context.Response.Status = "206 Partial Content";
context.Response.AppendHeader("Content-Range", "bytes " + file_range[0] + "-" + file_range[1] + "/" + fileSize.ToString());
context.Response.AppendHeader("Content-Length", (Int32.Parse(file_range[1]) - Int32.Parse(file_range[0]) + 1).ToString());
context.Response.TransmitFile(filePath, long.Parse(file_range[0]), (long)(Int32.Parse(file_range[1]) - Int32.Parse(file_range[0]) + 1));
}
}
catch (Exception exp)
{
JsonItem rv = new JsonItem();
rv.Attributes.Add("success", false);
rv.Attributes.Add("errorMessage", exp.Message);
context.Response.Write(rv.ToString());
}
}
public void ProcessRequest(HttpContext context)
{
try
{
string idstr = context.Request.Params["fileids"];
JsonItem rv = new JsonItem();
rv.Attributes.Add("success", true);
JsonItemCollection files = new JsonItemCollection();
rv.Attributes["files"] = files;
if (String.IsNullOrEmpty(idstr))
{
context.Response.Write(rv.ToString());
return;
}
string[] ids = idstr.Split(',', ';');
AttachmentCollection attachments;
using (IDbConnection cn = QueryManager.CurrentProvider.OpenConnection())
{
attachments = YZAttachmentHelper.GetAttachmentsInfo(cn, ids);
}
foreach (Attachment attachment in attachments)
{
JsonItem file = new JsonItem();
files.Add(file);
file.Attributes["attachment"] = attachment.FileID;
file.Attributes["name"] = attachment.Name;
file.Attributes["type"] = attachment.Ext;
file.Attributes["size"] = attachment.Size;
string requestUrl = HttpContext.Current.Request.Url.ToString();
string RedirectURLBase = requestUrl.Substring(0, requestUrl.IndexOf("Attachment", StringComparison.OrdinalIgnoreCase))
+ "Attachment/download.ashx?FileID=" + attachment.FileID;
file.Attributes["DownloadUrl"] = RedirectURLBase;
}
context.Response.AppendHeader("Access-Control-Allow-Origin", "*"); // 响应类型
context.Response.AppendHeader("Access-Control-Allow-Methods", "POST"); // 响应头设置
context.Response.AppendHeader("Access-Control-Allow-Headers", "x-requested-with,content-type");
context.Response.Charset = "gb2312"; //设置字符集类型
context.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
context.Response.ContentType = "application/json;charset=gb2312";
// if (attachments.Count > 0)
context.Response.Write(rv.ToString());
}
catch (Exception ex)
{
JsonItem rv = new JsonItem();
rv.Attributes.Add("success", false);
rv.Attributes.Add("errorMessage", JosonMobile.Msg_ALL_FileNoExist + ex.Message);
context.Response.Write(rv.ToString());
}
}
